1950 Map of Dog Keys Pass

About this map

Dog Keys Pass serves as the primary focal point of this coastal hydrographic study, marking the critical maritime threshold where the Mississippi Sound meets the open Gulf of Mexico. The map details the shifting sands of the barrier islands during the mid-20th century, specifically the western extremity of Horn Island at West Point and the eastern tip of Ship Island. These landforms are essential to the navigation and ecology of the Mississippi coast, defining the boundary between the sheltered sound and the deeper gulf waters.